Door-arch for furnaces.



C. E. BROWN.

DOOR ARGE FOR FUNAGES. APPLIoATI'loN FILED Nov. 24, 1911;

1,044,130. PatentediNov. 12, 1912.

m'vENToR 4 to manufacture.

UNITED PATEN T ormoni CHARLES E.' BROWN, or' NEW lKEN srNGf'rrm PENNSYLVANIA.

Specification of To all 'whom it 'concemfx Beit known that I, CHARLES E. BROWN, a citizen of the United States of America,

residing at New Kensington, in the county of Westmoreland and State of Pennsylvania, have invented certain neviT and useful lm- .provements in Door-Arches forFurnaces, of which the following is a speciiication,refer-v ence being had therein to the accompanying drawing.

my Patent No. 9h17 ,033, granted tof me J an- Besides having .the same obj ects in View' as disclosed in my prior pat-ent, the present invention aims to provide a door'archv withA a water cooled lintel that can be quickly removed and renewed without disturbing the. remaining portion of thearch.

the above 'results by-l a mechanical construcrtion that is simple, durable and inexpensive By reference' to myx-:prior patent, -it will be observed that the'girder forming the arch has the water cooling pipes embedded therein, this being expensive `to construct{besides` 4when the glrder burns `out, itis necessary.

for a cessation in the operation of the furnace and the" tearing away of a portion' of the roof of the furnace 1n order that the gi'rder can be removed. On account of 'the girder being used in connection with open hearth furnaces, the interruption of a heat or a cessation inthe operation of the furnace costs considerable money, and it/ is with this defect in 4view t-hat I havedevised the present invention, which permits of the water'cooled vlintel being removed Without experiencing any trouble.

ith the above and -other objects in view, the invention resides in the novel construction, combination and varrangement of parts t0 be hereinafter specifically described land then claimed. Y

Reference will n'ow be had to the drawing, Whereinzi *l Figure 1 is a front elevation' of a portion of a furnace in accordance with this invention, Fig. 2 is a vertical sectional view of the same, on line II-II of Fig'. l, Fig. 3 is.

The invention further aims to accomplish' noon-Anon Eon FuENAcEs.

Letters Patent. rammed Nov. 12, 1912.

' application ned November 24, 19141-V Seal m" 662467 l Fig. 4 is an enlarged plan of a portion of thelintel, and Fig. 5 is 'a` perspective View of thelintel. 4 i

The reference numeral 1 denotes a portion of the front wall of a furnace and@ a ,portion of the roof thereof. The front wall has a doorway 3 and said wall is braced by buck'stays 4:, a frame 5 and a fore plate 6. Arranged transversely of theydoorway 3,

at the top thereof'and supporting the front This inventionis an improvement upon" edge ofthe roofl 2, is a girder? having the rear side thereof grooved, as at 8 Vto receive I the tongues 9 of' the blocks or bricks formvgirder is provided with a dove-tailed groove 10 having the'largeend of said groove at the front side of said girder, said groove having' the walls thereof beveled. This groove is adapted to receive a dove-tailed tapering lintel v11, having the ends thereof beveled, as4

at 7a to seat in` the dove-tailed groove 10 whereby after the lintel is placed in said groove, said lintel cannot become accidentally. displaced, relatively to' 4said lintel. The lintel 11 has a longitudinal bore 12 for apipe 13.s'aid pipe havingzthe ends thereof 1 I extending toward'the inner edge of the lint-el and then upwardlyout of the lintel, as at 14. The front side of 'the girder vis 'cupped or provided with vertical grooves 15V f to provide' clearance for the ends of the pipe 13e It is to these pipes that other pipes can be connected for maintaining a circulabuck stays 4 and the'llintel 11 vis'held` in po sitionby jamb plates 16. The upper ends of the j amb plates are heldin engagement with tion of waterlthrou'gh the lintel, thereby pre-A v y the girder 7 by clamps 18 and keys 19. The

clamps 18 extend through the upper ends of the plates 16- andengage the inner upper l edge ofthe girder, while -the'keys 19 extend through the clamps 'against the upper ends of the. plates 16. The lower ends of the plates 16 are retained lin engagement with the fore plate 6 and the frame 5 by pins 20,

the lower ends of said 'pinshaving keys -21 retaining said pins in position. By remov- 'ing the jamb platesv 1d, 'the lintel can be quickly removed from the girder and rel detachably mounted in the groove of said nevved, Without disturbing the girder or the girder, a pipe carried by said lintel and havremaining portions of the furnace. ing the ends thereof at an angle to said lintel What I claim is and seated in the. front Side of Said girder. 5 In a furnace construction, a. doorway arch In testimony whereof I aix my signature comprising a girder provided With a dovein the presence of two Witnesses. tailed groove having the large end of said CHARLES E. BROVN. groove at the front'side of said girder, said `Witnesses: A groove having the Walls thereof beveled, a KARL H. BUTLER, l0 lintel having he ends thereof beveled and MAX H. SRoLovrra 

